waves

2. matter where a waves travel
7. the transfer of energy by a wave to the medium through which it travels
10. highest point on transverse was
11. amount of sound energy that passes through a square meter of space in one second
14. passage of light through an object
15. bouncing of a wave off a surface
17. region of a longitudinal wave where the particles are farthest apart
18. a wave that can travel only through matter
19. reflected sound wave
20. system that uses direction of sound waves to find underwater objects

1. perception of how high or low a sound seems
3. animal uses to locate an object by means of reflected sounds
4. rapid back and forth motion that can occur in solids,liquids,or gases
5. collection of reflected sounds from the surface in a closed space
6. change of pitch when a sound source is moving in relation to an observer
8. study of how sound interacts with structures
9. waves that overlap combine forming a new wave
12. distance that transfers energy from one space to another without transferring matter
13. longitudinal waves that can only travel through matter
16. lowest point on transverse wave